Clock



FIG. 1 is a perspective view of the clock of the present invention;

FIG. 2 is a front elevational view of the clock of the present invention;

FIG. 3 is a right side elevational view of the clock of the present invention, the left side being a mirror image thereof.

FIG. 4 is a rear elevational view of the clock of the present invention;

FIG. 5 is a plan view of the clock of the present invention; and,

FIG. 6 is a bottom view of the clock of the present invention. 

The ornamental design for a clock, as shown and described. 